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Journal articles on the topic 'Quasi Zero Stiffness'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Li, Ming, Wei Cheng, and Ruili Xie. "Design and experiments of a quasi–zero-stiffness isolator with a noncircular cam-based negative-stiffness mechanism." Journal of Vibration and Control 26, no. 21-22 (2020): 1935–47. http://dx.doi.org/10.1177/1077546320908689.

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This article presents a quasi–zero-stiffness isolator with a cam-based negative-stiffness mechanism, where the cam has a user-defined noncircular profile to generate negative stiffness to counterbalance the positive stiffness of the vertical spring and yield the quasi–zero-stiffness characteristic around the equilibrium position. Unlike previous studies, the proposed quasi–zero-stiffness isolator has the preferable feature that the desired cubic restoring force can be directly obtained through the well-designed profile of the cam in the negative-stiffness mechanism with the friction considered

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2

Lou, Yu, and Peng Zhou. "Design and evaluation of a quasi-zero-stiffness isolator using flexibly supported negative stiffness mechanism." E3S Web of Conferences 233 (2021): 03052. http://dx.doi.org/10.1051/e3sconf/202123303052.

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In traditional quasi-zero-stiffness (QZS) isolation system, the negative stiffness part is usually fixed rigidly, lacking of effective amplifying mechanism. For reaching a quasi-zero state, the value of negative stiffness need to be very large to offset the positive stiffness of the structure. This paper proposes a novel isolator incorporating a flexible support to magnify negative stiffness part for effective realization of quasi-zero state. First, the concept and formulation of the innovative quasi-zero isolator are presented. Equivalent model for the flexibly supported negative stiffness pa

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3

Niu, Fu, Ling Shuai Meng, Wen Juan Wu, et al. "Recent Advances in Quasi-Zero-Stiffness Vibration Isolation Systems." Applied Mechanics and Materials 397-400 (September 2013): 295–303. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.295.

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The quasi-zero-stiffness vibration isolation system has witnessed significant development due to the pressing demands for low frequency and ultra-low frequency vibration isolation. In this study, the isolation theory and the characteristic of the quasi-zero-stiffness vibration isolation system are illustrated. Based on its implementation mechanics, a comprehensive assessment of recent advances of the quasi-zero-stiffness vibration isolation system is presented. The future research directions are finally prospected.

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4

Chen, Long, Jun Wang, Xing Xu, Xinwei Jiang, and Feng Wang. "Nonlinear Analysis of a Quasi-Zero Stiffness Air Suspension Based on the Cell-Mapping Method." International Journal of Acoustics and Vibration 26, no. 2 (2021): 148–60. http://dx.doi.org/10.20855/ijav.2021.26.21755.

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The quasi-zero stiffness system has the characteristics of low dynamic stiffness and high static stiffness, which can bring a better driving experience and lower road dynamic load at high speed on irregular roads. This paper studies a type of interconnected quasi-zero stiffness air suspension system, which has two states, namely, the non-interconnected quasi-zero stiffness air suspension and the interconnected quasi-zero stiffness air suspension, to meet the performance requirements under different loads and vehicle speed. First, the mathematical model of the nonlinear system is established ba

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5

Burian, Yu A., and M. V. Silkov. "Vibration isolation with quasi-zero stiffness effect." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 3, no. 2 (2019): 9–14. http://dx.doi.org/10.25206/2588-0373-2019-3-2-9-14.

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6

Zhou, Jiaxi, Daolin Xu, and Steven Bishop. "A torsion quasi-zero stiffness vibration isolator." Journal of Sound and Vibration 338 (March 2015): 121–33. http://dx.doi.org/10.1016/j.jsv.2014.10.027.

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7

Chang, Yaopeng, Jiaxi Zhou, Kai Wang, and Daolin Xu. "A quasi-zero-stiffness dynamic vibration absorber." Journal of Sound and Vibration 494 (March 2021): 115859. http://dx.doi.org/10.1016/j.jsv.2020.115859.

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8

Carrella, A., M. J. Brennan, and T. P. Waters. "Optimization of a quasi-zero-stiffness isolator." Journal of Mechanical Science and Technology 21, no. 6 (2007): 946–49. http://dx.doi.org/10.1007/bf03027074.

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9

Ji, Zhiyuan, Tiejun Yang, Lei Wu, Yang Xu, Xinhui Li, and Minggang Zhu. "Design and characteristic analysis of quasi-zero stiffness inertial actuator." Journal of Physics: Conference Series 2909, no. 1 (2024): 012022. https://doi.org/10.1088/1742-6596/2909/1/012022.

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Abstract In order to solve the problem of low frequency vibration control more effectively, a new type of inertial actuator is proposed in this paper, which is different from the conventional type in that the linear stiffness is replaced by the quasi-zero stiffness. In this design, the structure mainly consisting of a horizontal spring and connecting rod provides negative stiffness to offset the positive stiffness of the vertical spring, which not only ensures sufficient static load capacity, but also reduces the dynamic stiffness of the mass near the equilibrium position. In this study, a res

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10

Liu, Tao, Aiqun Li, and Hengyuan Zhang. "Optimal Design and Dynamic Analysis of a New Quasi-Zero-Stiffness Isolation Device." Structural Control and Health Monitoring 2023 (July 18, 2023): 1–17. http://dx.doi.org/10.1155/2023/9756226.

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Compared with the linear isolation system, the quasi-zero-stiffness (QZS) nonlinear isolation system has the characteristics of high static stiffness and low dynamic stiffness, which has better low-frequency vibration isolation performance. However, most of the existing QZS isolators only consider the quasi-zero-stiffness characteristic at the static equilibrium position achieved by the parallel connection of positive and negative stiffness structures. To optimize the isolation performance of the QZS system, a new isolation device based on the parallel connection of oblique springs and vertica

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11

Jiang, Youliang, Chunsheng Song, Xin Ma, Han Wu, and Zhihui Mai. "Dynamics and Stability of Magnetic-Air Hybrid Quasi-Zero Stiffness Vibration Isolation System." International Journal of Acoustics and Vibration 28, no. 1 (2023): 65–75. http://dx.doi.org/10.20855/ijav.2023.28.11919.

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With the improvement of machining accuracy, external low frequency vibration has become one of the most important factors affecting the performance of equipment. The theory of quasi-zero stiffness vibration isolation shows favorable low frequency vibration isolation effect. However, the theory, mechanical properties and dynamics of the system still need to be studied and expanded. Based on our previous research on the structure of a magnetic-air hybrid quasi-zero stiffness vibration isolation system, the nonlinear mechanical expression of positive and negative stiffness structure has been anal

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12

Zhou, Zhanfeng, Yongzhuo Gao, Lining Sun, Wei Dong, and Zhijiang Du. "A bistable mechanism with linear negative stiffness and large in-plane lateral stiffness: design, modeling and case studies." Mechanical Sciences 11, no. 1 (2020): 75–89. http://dx.doi.org/10.5194/ms-11-75-2020.

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Abstract. To overcome the limitations of conventional bistable mechanisms, this paper proposes a novel type of bistable mechanism with linear negative stiffness and large in-plane lateral stiffness. By connecting the novel negative-stiffness mechanism in parallel with a positive-stiffness mechanism, a novel quasi-zero stiffness compliant mechanism is developed, which has good axial guidance capability and in-plane lateral anti-interference capability. Analytical models based on a comprehensive elliptic integral solution of bistable mechanism are established and then the stiffness curves of bot

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13

Korytov, M. S., V. S. Sherbakov, and I. E. Kashapova. "Dynamic properties of a motor grader seat with quasi-zero static characteristics." Nauchno-tekhnicheskiy vestnik Bryanskogo gosudarstvennogo universiteta 8, no. 4 (2022): 291–98. http://dx.doi.org/10.22281/2413-9920-2022-08-04-291-298.

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During operation, transport and technological machines and equipment experience significant vibration effects from the working environment, which are transmitted to the human operator through the cab seat. The negative impact of dynamic influences and vibrations transmitted through the seat to the operator is noted in many works. The use of vibration protection systems for operator seats requires their simulation and study on mathematical models, which is an urgent task in the design of such systems. Vibration protection systems with the effect of quasi-zero stiffness are promising. To study v

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14

Valeev, A. "Designing Metamaterial with Arc-Structure for Wide Broad Vibration Isolating." Solid State Phenomena 265 (September 2017): 592–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.592.

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The paper is devoted to the idea of metamaterials with quasi-zero stiffness for vibration isolation. Metametarials may provide special and unique properties of materials. In this area it is possible to use the principles of systems with quasi-zero stiffness. Such nonlinear deformation of material provides low stiffness at a certain point. Hence low natural frequency and high efficiency of vibration isolation can be obtained. An analytical study was done. Computer modeling shows a big enough margin of safety and also proves the existence of force characteristic with quasi-zero stiffness. The ca

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15

Ahn, Hyeong-Joon, Sung-Hun Lim, and Changkun Park. "An integrated design of quasi-zero stiffness mechanism." Journal of Mechanical Science and Technology 30, no. 3 (2016): 1071–75. http://dx.doi.org/10.1007/s12206-016-0210-x.

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16

Sui, Guangdong, Xiaofan Zhang, Shuai Hou, Xiaobiao Shan, Weijie Hou, and Jianming Li. "Quasi-Zero Stiffness Isolator Suitable for Low-Frequency Vibration." Machines 11, no. 5 (2023): 512. http://dx.doi.org/10.3390/machines11050512.

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This paper proposes a quasi-zero stiffness (QZS) isolator based on an inclined trapezoidal beam to explore its advantages in low-frequency passive vibration isolation. The nonlinear stiffness of the inclined trapezoidal beam due to the buckling effect is investigated through finite element simulation, and a linear positive stiffness spring is connected in parallel to form a QZS isolator with high-static and low-dynamic stiffness performance. The natural frequency of the isolator in the QZS region is simulated and analyzed, and the dynamic response of the QZS isolator under different damping ra

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17

Potopalska, Ksenia, Oleksii Larin, Eugen Grinchenko, Nadiia Razumovska, and Nikita Vaslilchenko. "DEVELOPMENT OF CALCULATION MODELS OF PASSIVE STRUCTURAL SUSPENSION ELEMENTS WITH QUASI-ZERO STIFFNESS MADE OF COMPOSITE MATERIALS." Bulletin of the National Technical University «KhPI» Series: Dynamics and Strength of Machines, no. 2 (December 24, 2024): 77–84. https://doi.org/10.20998/2078-9130.2024.2.198573.

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This study introduces the design and analysis of a novel metastructure with quasi-zero dynamic stiffness for potential use in vibration isolation systems. The proposed metastructure is constructed from unit cells that integrate elements with both negative and positive stiffness. These elements are arranged in parallel to create a region of quasi-zero stiffness. This unique configuration allows the metastructure to achieve a balance between stability and flexibility, making it highly adaptable for various engineering applications.Numerical simulations were conducted to evaluate the static chara

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18

Meng, Qingguo, Xuefeng Yang, Wei Li, En Lu, and Lianchao Sheng. "Research and Analysis of Quasi-Zero-Stiffness Isolator with Geometric Nonlinear Damping." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/6719054.

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This paper presents a novel quasi-zero-stiffness (QZS) isolator designed by combining a tension spring with a vertical linear spring. In order to improve the performance of low-frequency vibration isolation, geometric nonlinear damping is proposed and applied to a quasi-zero-stiffness (QZS) vibration isolator. Through the study of static characteristics first, the relationship between force displacement and stiffness displacement of the vibration isolation mechanism is established; it is concluded that the parameters of the mechanism have the characteristics of quasi-zero stiffness at the equi

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19

Li, Xin, Jinqiu Zhang, and Jun Yao. "Effect of the Time-Varying Damping on the Vibration Isolation of a Quasi-Zero-Stiffness Vibration Isolator." Shock and Vibration 2020 (May 8, 2020): 1–10. http://dx.doi.org/10.1155/2020/4373828.

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This study focuses on the effect of damping changes on the vibration isolation of a quasi-zero-stiffness vibration isolator. A nonlinear-vibration equation for the quasi-zero-stiffness vibration isolator is found and solved using the multiscale method. Then, the vibration characteristics before, in the process of and after the damping change, are also examined. The results show that time-varying damping can be equivalent to the addition of a stiffness term to the vibration system, which leads to a change of the vibration amplitude frequency response, leakage of power spectrum, and correspondin

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20

Vo, Ngoc Yen Phuong, and Thanh Danh Le. "Dynamic Analysis of Quasi-Zero Stiffness Pneumatic Vibration Isolator." Applied Sciences 12, no. 5 (2022): 2378. http://dx.doi.org/10.3390/app12052378.

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This paper focuses on analyzing the dynamic response of an innovated quasi-zero stiffness pneumatic vibration isolator (QZSPVI) using two mechanisms, including wedge and semicircle cam. Different from other studies relating quasi-zero stiffness isolation system, the pneumatic cylinder in this paper works as an air spring in order to easily adjust the dynamic stiffness of the proposed system according to the change of the isolated load through regulating the pressure. Firstly, the dynamic stiffness of the QZSPVI will be analyzed. Then, the condition for which the minimum dynamic stiffness is qu

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21

Valeev, Anvar. "Dynamics of a group of quasi-zero stiffness vibration isolators with slightly different parameters." Journal of Low Frequency Noise, Vibration and Active Control 37, no. 3 (2018): 640–53. http://dx.doi.org/10.1177/1461348418756022.

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This article is devoted to finding solutions of problems of vibration isolators with quasi-zero stiffness from a manufacturing point of view. The following study is appeared after experimental study and manufacturing of preproduction serial of universal isolators of a dome type. An analytical description of some types of vibration isolators with quasi-zero stiffness is briefly observed. The sensitivity of vibration isolators of a dome type is studied. It is proved that vibration isolators with quasi-zero stiffness require high precision at manufacturing. Dynamics of a group of vibration isolat

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22

Zhang, Laixi, Chenming Zhao, Feng Qian, Jaspreet Singh Dhupia, and Mingliang Wu. "A Variable Parameter Ambient Vibration Control Method Based on Quasi-Zero Stiffness in Robotic Drilling Systems." Machines 9, no. 3 (2021): 67. http://dx.doi.org/10.3390/machines9030067.

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Vibrations in the aircraft assembly building will affect the precision of the robotic drilling system. A variable stiffness and damping semiactive vibration control mechanism with quasi-zero stiffness characteristics is developed. The quasi-zero stiffness of the mechanism is realized by the parallel connection of four vertically arranged bearing springs and two symmetrical horizontally arranged negative stiffness elements. Firstly, the quasi-zero stiffness parameters of the mechanism at the static equilibrium position are obtained through analysis. Secondly, the harmonic balance method is used

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23

Bian, Jing, Xingjian Jing, and Yishen Tian. "An innovative X-shaped vibration isolation mount with tunable quasi-zero-stiffness property." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (2021): 3011–22. http://dx.doi.org/10.3397/in-2021-2284.

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Passive vibration isolation is always preferable in many engineering practices. To this aim, an innovative, compact, and passive vibration isolation mount is studied in this paper. The novel mount is adjustable to different payloads due to a special oblique and tunable stiffness mechanism, and of high vibration isolation performance with a wider quasi-zero-stiffness range due to the deliberate employment of negative stiffness of the X-shaped structure. The X-shaped structure has been well studied recently due to its excellent nonlinear stiffness and damping properties. In this study, by using

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24

Zhang, Wei, Xiaoping Li, Jian Li, and Xiqiu Li. "An Improved Structural Analysis Method for Isolator with Quasi-Zero-Stiffness Characteristic." Shock and Vibration 2021 (December 15, 2021): 1–13. http://dx.doi.org/10.1155/2021/9920674.

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A typical quasi-zero-stiffness (QZS) vibration isolator consisting of a vertical spring and two oblique springs has been widely researched on its static and dynamic characteristics. A general criterion for determining structural parameters of QZS isolator is to achieve low nondimensional stiffness around the equilibrium position. However, lower nondimensional stiffness of linear isolator means lower isolation frequency, which may be invalid on QZS isolator. Because there is an implicit relationship between geometric parameter and stiffness ratio of QZS isolator, this study presents an improved

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25

Merrifield, Ava, and Luke Fredette. "Advances in elastomeric mount concepts for quasi-zero stiffness isolation." Noise Control Engineering Journal 72, no. 5 (2024): 432–40. http://dx.doi.org/10.3397/1/377232.

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Quasi-zero stiffness (QZS) mounts can exploit geometric nonlinearity to minimize stiffness about an operating point, which isolates vibrations from a supported source or receiver. Previous research on elastomeric QZS mounts featured 3D-printed prototypes but did not consider unique material properties and fabrication artifacts that may impact the static and dynamic behavior of the mounts. Additionally, multi-axis properties and their influence on common box-like systems supported by several mounts lack detailed study. To overcome these limitations and improve the practicality of elastomeric QZ

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26

Merrifield, Ava, and Luke Fredette. "Advances in elastomeric mount concepts for quasi-zero stiffness isolation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 269, no. 2 (2024): 454–65. http://dx.doi.org/10.3397/nc_2024_0054.

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Quasi-zero stiffness (QZS) mounts can exploit geometric nonlinearity to minimize stiffness about an operating point which isolates vibrations from a supported source or receiver. Previous research on elastomeric QZS mounts featured 3D printed prototypes but did not consider unique material properties and fabrication artifacts that may impact the static and dynamic behavior of the mounts. Additionally, multi-axis properties and their influence on common, box-like systems supported by several mounts lacks detailed study. To overcome these limitations and improve the practicality of elastomeric Q

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27

Fredette, Luke, and Rajendra Singh. "Innovative elastomeric shear leg mount concepts for quasi-zero stiffness isolation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 4 (2021): 2609–16. http://dx.doi.org/10.3397/in-2021-2184.

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Passive vibration isolation may be a cost-effective solution to isolate a supported system containing a source and/or receiver from the supporting structure. The standard linear theory suggests a low-stiffness joint to create a mobility mismatch in the transmission path, but this solution may lead to large amplitude motions in the supported system. To achieve both motion control and isolation with the same mount and without compromising either objective, an innovative, nonlinear mount concept is proposed. Taking advantage of geometric nonlinearity for large displacements, a quasi-zero stiffnes

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28

Korytov, M. S., V. S. Shcherbakov, V. V. Titenko, and I. E. Pochekueva. "ROLLER VIBROPROTECTION MECHANISM WITH A QUASI-ZERO STIFFNESS SECTION." Dynamics of Systems, Mechanisms and Machines 8, no. 1 (2020): 055–62. http://dx.doi.org/10.25206/2310-9793-8-1-55-62.

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29

Korytov, M. S., V. S. Shcherbakov, V. V. Titenko, and I. E. Pochekueva. "Roller vibroprotection mechanism with a quasi-zero stiffness section." Journal of Physics: Conference Series 1791, no. 1 (2021): 012014. http://dx.doi.org/10.1088/1742-6596/1791/1/012014.

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30

Sorokin, V. N., B. A. Kalashnikov, and I. Y. Efimov. "DYNAMICS WITH QUASI-ZERO STIFFNESS OF THE ANTIVIBRATION MOUNTINGS." Dynamics of Systems, Mechanisms and Machines 6, no. 1 (2018): 118–25. http://dx.doi.org/10.25206/2310-9793-2018-6-1-118-125.

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31

Burian, Yu A., and M. V. Silkov. "CONICAL METAL-RUBBER SUPPORT WITH QUASI-ZERO STIFFNESS EFFECT." Dynamics of Systems, Mechanisms and Machines 6, no. 1 (2018): 014–17. http://dx.doi.org/10.25206/2310-9793-2018-6-1-14-17.

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32

Yan, Ge, Zhi-Yuan Wu, Xin-Sheng Wei, et al. "Nonlinear compensation method for quasi-zero stiffness vibration isolation." Journal of Sound and Vibration 523 (April 2022): 116743. http://dx.doi.org/10.1016/j.jsv.2021.116743.

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33

Zhou, Jiacheng, Xiaoming Wang, and Yulin Mei. "Characteristic analysis of a quasi-zero-stiffness vibration isolator." IOP Conference Series: Materials Science and Engineering 397 (August 31, 2018): 012045. http://dx.doi.org/10.1088/1757-899x/397/1/012045.

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34

Liu, Chaoran, Wei Zhang, Kaiping Yu, Tao Liu, and Yan Zheng. "Quasi-zero-stiffness vibration isolation: Designs, improvements and applications." Engineering Structures 301 (February 2024): 117282. http://dx.doi.org/10.1016/j.engstruct.2023.117282.

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35

Zhang, Qianlong, Shuyan Xia, Daolin Xu, and Zhike Peng. "A torsion–translational vibration isolator with quasi-zero stiffness." Nonlinear Dynamics 99, no. 2 (2019): 1467–88. http://dx.doi.org/10.1007/s11071-019-05369-9.

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36

Burian, Yu A., and M. V. Silkov. "Conical metal-rubber support with quasi-zero stiffness effect." Journal of Physics: Conference Series 1210 (March 2019): 012027. http://dx.doi.org/10.1088/1742-6596/1210/1/012027.

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37

Li, Yingli, and Daolin Xu. "Spectrum reconstruction of quasi-zero stiffness floating raft systems." Chaos, Solitons & Fractals 93 (December 2016): 123–29. http://dx.doi.org/10.1016/j.chaos.2016.10.009.

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38

Ma, Zhaozhao, Ruiping Zhou, Qingchao Yang, Heow Pueh Lee, and Kai Chai. "A semi-active electromagnetic quasi-zero-stiffness vibration isolator." International Journal of Mechanical Sciences 252 (August 2023): 108357. http://dx.doi.org/10.1016/j.ijmecsci.2023.108357.

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39

Shaw, A. D., G. Gatti, P. J. P. Gonçalves, B. Tang, and M. J. Brennan. "Frictional phenomena within a quasi zero stiffness vibration device." Mechanical Systems and Signal Processing 211 (April 2024): 111113. http://dx.doi.org/10.1016/j.ymssp.2024.111113.

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40

Wen, Guilin, Yu Lin, and Junfeng He. "A quasi-zero-stiffness isolator with a shear-thinning viscous damper." Applied Mathematics and Mechanics 43, no. 3 (2022): 311–26. http://dx.doi.org/10.1007/s10483-022-2829-9.

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AbstractQuasi-zero-stiffness (QZS) vibration isolators have been widely studied, because they show excellent high static and low dynamic stiffnesses and can effectively solve low-frequency and ultralow-frequency vibration. However, traditional QZS (T-QZS) vibration isolators usually adopt linear damping, owing to which achieving good isolation performance at both low and high frequencies is difficult. T-QZS isolators exhibit hardening stiffness characteristics, and their vibration isolation performance is even worse than that of linear vibration isolators under a large excitation amplitude. Th

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41

Yadav, Vinod, Dibya Prakash Jena, and Sharat Pandey. "An inclined beam-based vibration isolator design to attain quasi-zero-stiffness characteristics." Journal of Physics: Conference Series 2909, no. 1 (2024): 012024. https://doi.org/10.1088/1742-6596/2909/1/012024.

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Abstract A linear spring element combined with a nonlinear spring element has low dynamic stiffness and high static stiffness. In this work, a quasi-zero stiffness (QZS) vibration isolator based on positive stiffness and negative stiffness characteristic is explored. Using finite element simulation, the nonlinear stiffness of the inclined beam caused by the buckling effect and the linear positive stiffness of the circular arc beam is examined. The combination of these two beams delivered high static and low dynamic stiffness. The static characteristic is performed to obtain the operational dis

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42

Shahraeeni, Mehran. "Parametric study of the axial force and negative stiffness of an electromagnetic mechanism for vibration isolation applications." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 267, no. 1 (2023): 288–91. http://dx.doi.org/10.3397/no_2023_0056.

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Nonlinear vibration isolators that take advantage of negative stiffness elements can provide high static stiffness to bear high static loads and quasi-zero dynamic stiffness to widen the isolation frequency band and hence are desirable for vibration isolation. Electromagnetic negative stiffness elements can be used to design and fabricate quasi-zero-stiffness vibration isolators. Different combinations of permanent magnets and electromagnetic coils in attractive or repulsive configurations can lead to negative stiffness. The magnitude of the electromagnetic restoring force and negative stiffne

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43

Raei, Meysam, and Morteza Dardel. "Tuned mass damper and high static low dynamic stiffness isolator for vibration reduction of beam structure." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 234, no. 1 (2019): 95–115. http://dx.doi.org/10.1177/1464419319876390.

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In this work, the combination effect of tuned mass damper and high static low dynamic stiffness (HSLDS) isolator is investigated in reducing the vibration amplitude of Euler–Bernoulli beam with a nonlinear attachment. The performance of the absorber is studied in two cases; the first case, HSLDS isolator is one degree of freedom and the second case, two degree of freedom isolator is combined of HSLDS isolator and tuned mass damper absorber. By comparing the performance of these two isolators, it is revealed the two degree of freedom isolator has much better performance in direct force excitati

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44

Tuo, Jiying, Zhaoxiang Deng, Wei Huang, and Heshan Zhang. "A six degree of freedom passive vibration isolator with quasi-zero-stiffness-based supporting." Journal of Low Frequency Noise, Vibration and Active Control 37, no. 2 (2018): 279–94. http://dx.doi.org/10.1177/1461348418756020.

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A six degree of freedom nonlinear passive vibration isolator is proposed based on Stewart platform configuration with the quasi-zero-stiffness structure as its legs. Due to the high static stiffness and low dynamic stiffness of each leg, the proposed six degree of freedom system can realize very good vibration isolation performance in all six directions while keeping high static load-bearing capacity in a pure passive manner. The mechanic model of the proposed six degree of freedom isolator and the dynamic equation of the isolator are established successively. Theoretical analysis on cross cou

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45

Jurevicius, M., V. Vekteris, V. Turla, A. Kilikevicius, and G. Viselga. "Investigation of the dynamic efficiency of complex passive low-frequency vibration isolation systems." Journal of Low Frequency Noise, Vibration and Active Control 38, no. 2 (2019): 608–14. http://dx.doi.org/10.1177/1461348418822230.

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In this study, the theoretical and experimental investigations of the dynamics of complex passive low-frequency vibration systems are described. It is shown that a complex system consisting of a vibrating platform, an optical table and a vibration isolation system of quasi-zero stiffness loaded by a certain mass may isolate low-frequency vibrations in a narrow frequency range only. In another case, the system does not isolate vibrations; it even operates as an amplifier. The frequencies that ensure the top efficiency of the vibration damping system of quasi-zero stiffness were established.

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Yang, Qing Chao, Li Hua Yang, Yan Ping Chen, and Hao Kai Lai. "Study on the Global Bifurcation of Quasi-Zero-Stiffness System." Applied Mechanics and Materials 397-400 (September 2013): 451–56. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.451.

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According to the characteristics of the quasi zero stiffness (QZS) system, a dynamics approximation model is established. The effect of excitation force amplitude, frequency and stiffness on the dynamic characteristics of the system is studied by continuation algorithm. The global bifurcation diagram with a wide range of parameters is achieved by using Poincaré mapping method. Results show that when the exciting force amplitude increases to a certain extent, the system will come into multi-cycle and chaos motion state. When exciting force frequency is lower, the system dynamic behavior is com

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Cheng, Chun, Yan Hu, and Ran Ma. "Enhanced ride comfort using nonlinear seat suspension with high-static-low-dynamic stiffness." Noise & Vibration Worldwide 51, no. 4-5 (2020): 63–76. http://dx.doi.org/10.1177/0957456520901356.

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To attenuate the low-frequency vibration transmitted to the driver, a nonlinear seat suspension with high-static-low-dynamic stiffness is designed. First, the force and stiffness characteristics are derived. The nonlinear suspension can achieve the quasi-zero stiffness at the static equilibrium position when the structural parameters are properly designed. Then, a car-seat-human coupled model which consists of a quarter car model, a seat suspension, and a 4 degree-of-freedom human model is established to predict the biodynamic response of the driver. Finally, the isolation performance of the h

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Li, Shao-Hua, Nan Liu, and Hu Ding. "Research on a nonlinear quasi-zero stiffness vibration isolator with a vibration absorber." Science Progress 103, no. 3 (2020): 003685042094089. http://dx.doi.org/10.1177/0036850420940891.

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A negative stiffness mechanism consisting of a spring and cylinder is proposed, and a grounded dynamic vibration absorber is designed based on a quasi-zero stiffness vibration isolator to constitute the vibration isolator with a vibration absorber system. The range of parameters for attaining zero stiffness is derived from static analysis. The dynamic analysis of the vibration isolator with a vibration absorber system is carried out by a multiscale method, and the amplitude–frequency response equation of the system is obtained. The influence of different system parameters on the amplitude–freq

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WANG, Xiaojie. "Vibration Transmission Characteristics of a Quasi-zero Stiffness Torsional Isolator." Journal of Mechanical Engineering 54, no. 21 (2018): 49. http://dx.doi.org/10.3901/jme.2018.21.049.

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Burian, Yu A., and M. V. Silkov. "Vibro-isolation suspension with quasi-zero stiffness for vibroactive equipment." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 3, no. 4 (2019): 9–15. http://dx.doi.org/10.25206/2588-0373-2019-3-4-9-15.

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